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Takeshi YOSHIDA
| April 2006 | 〜 | Now | ： | Chief Researcher for Special Affairs |
| April 2003 | 〜 | March 2006 | ： | Research Coordinator |
| April 2001 | 〜 | March 2003 | ： | Chief Researcher for Pavement |
Copyright (C) 2008 Public Works Research Institute
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Maintenance＞Contact Takeshi YOSHIDA
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Copyright (C) 2008 Public Works Research Institute |